Cut-out.



PATENTED NOV. 20, 1906.

C. L. BUNDY & A. H,. MAN-WARING.

CUT-OUT. APRLIOATION FILED mun'zl. 1904.

NasseAsa UNI ED STATE PA ENT )FFIGE1.I.F

cLIEToN BUNIjY AND ALBERT; H. A W ING, Efi'a ILA ELPPIIA, PENNSYLVANIA, ASSIGNOBS gro PHILADELPHIA ELECTRICAL & MANUEAQ'PURING 00., OF PHILADELPHIA, PENNSYLVANIA, A ooR-,

Po AT oN OF ENNSYLVANIA.

, CUT-OUT.

Specification of Letters Patent.

Patented Nov. 20, 1966.

Application filed-lune 21,1904. Serial No 213,532. I

To all whom/it may concern;

Be itknown that we, C IFTON L. B'UNDY,

1 and ALBERTH. MANWARING,,Glt1ZeIlS of the United States, and residents of Philadelphia, Pennsylvania,. have invented, certain ,Im

provements in Cut-Outs, ofwhich the follow ing isa specification. I Our invention relates to cut-outs? or switches for controlling electric current and it consists of an improved device designed more particularly for use with arc-lamps,

whereby the -main line supplying current to the lamp-circuit can be. closed and the lamp or lamps entirely disconnected, so that .they can be. handled without danger of shock.-

. Our improved switch, however, is available for use with any system for distributing electric current.

Our invention is fully shown in the accompanying drawings, in which Figure 1 is a front elevation of a structure embodying our invention with a portion of the same removed. Fig. 2 is a side elevation showing a portion of the structure in section.

on the line art, Fig. 1. Fig. 3 is an enlarged plan View of the members forming the switch and the mounting for the same. Fig. 4 is a side elevation of the switch and its mounting.

Fig. 5 is a plan view similar to Fig. 3, showing the switch in another position withthe operating member or plug in place. Fig. 6 is a view similar to Fig. 5, showing the operating member or plug partially withdrawn; and Fig. 7 is a side elevation illustrating a detail of the operating member or plug.

As is well known, there is considerable danger connected with the handling of arclamps or arclamp. circuits when current is passing through said lamps or circuits.

Our invention comprises means for disconnecting any lamp or any loop controlling a series of lamps when the current is on by detaching the wires leading to the lamp or loop controlling a series of lamps and closing the main line, thereby enabling the operator to handle the lamp or lamp-circuit without danger of receiving a shock.

In the drawings herewith, 1 represents the upper shell or casing of an ordinary arc-lamp, which is provided with binding-posts 2 for the current-supplying wires. This shell or casing is provided with a link 3, whereby it insulating; members 6,7, 8, and 9.

may be suspended, and supported by a hook 4 is the structure carrying the switch or cutout device from which the lamp is hung. This structure comprises a casing 5 of any suitable form, to which is attached a serie p lpf e members 6 and 7 form part of the supporting structure, while the members 8 and 9 are employedsimply as supports for the leading-in wires 10 and 11, supplying the current, being connected thereto in any suitable manner.

. The insulatingmember 6 is carried by a ring and yoke-piece 12, suspended from the hook hand is provided with means whereby it may be locked to said hook, comprising the pivoted bar 13 and the set-screw 1 4, ,The insulating member 7 is also carried by a yoke and ringmember 15, and saidinsulating" membercarries a hook 163, fromwhich the lamp structure 1 is suspended by means of thelink3.

Within the casing 5 is a block 17 of insue lating material, carrying the switch structure, which latter consists of apair of segmental members 18 and 19, theformer having a ,split end 20, formed by spring contactplates 21, to receive the end 22 of the member 19, and both of thesemembers are pivotally mounted on pins 23 and 245. Carried by said pins and fixed with relation to the block 17 are the binding-posts 25. and 26, to which are connected the leading-in wires 10 and 11 by means of suitable screws. The switch members are free to turn on thepins 23 and 24, and to create a tension upon the same and prevent them turning too readily fiat spring members 27 and 28 are provided,

which spring members are interposed between said switch members and the fixed binding-posts and are held so, as to move with the switch members by means of projecting portions 29 which enter openings 30 in said switch members. The block 17 is disposed at an angle within the casing 5 and is secured therein by means of screws 31.

.When the switch members arein the position shown in Fig. 3, the main line is shortcircuited, the current passin from the main to the leading-in wire 10, to t e binding-post 25, thence to the switch members 18 and 19, thence to the binding-post 26, thence out through the leading-in wire 11, and the lamp are provided.

when the switch is in this position is en-. tirely disconnected.

To connect the lamp, the following means The block 17, carrying the segmental switch members, is disposed at an angle within the casing, as shown in Fig. 2, and the cover 32 of the casing, hinged at 33, is provided with an opening 34 in line with said block, which is cut away at the center, as sho'wnat 35. Arranged to enter this opening 34 is a plug 36, made of porcelain, wood, rubber, or other suitable insulating material. This opening is in line with the switch members 18 and 19, so that when the plug-'36 is entered andengages the far ends 20'and 22 ofsaid switch members it will turn the latter upon their pivots and cause their opposite ends 20 and 22 to enter grooves or ways 37 in the sides of the plug, which. grooves or ways are provided with spring-metal clips 38, connectedto wires 39 and'40, respectively, forming the lamp-terminals, which latter are'attached to the binding-posts 2 of the lamp, being held by suitable means and through which the current I passes to the lamp. These spring-metal clips are held in place by suitable pins 41, the plug36 being recessed, whereby said pins may be soldered or otherwise fastened in placepas indicated at 42, and in the farend of the spaces betweensaidspring-clips we mount rollers'43,

as clearly shown in Figs 5; and'6. The end of the plug is recessed at 44, and such'recessed portion has a curved faceon the same are as the switch members, so that when said plug is passed into the casing and brought into engagement with the rear ends of such switch members it will tend to separate the same and the continued movement of the plug will open said switch and cause the ends'20 and 22 of said members to engage the spring-metal clips carried by said plug,

and the lamp is thus thrown into circuit. When it is desired todisconnect the lamp, the plug 36 will be removed, and in the act of removalthe rollers 43 will engage the front -ends 2O and'22' of the switch members and cause the-same toopenyand the rear ends 20 and 22 of said switch members "will engage, thereby closing the main line.

The opening for the plug is disposedat the under sideofthe casing, so as to prevent the access of water. The plug is provided with a projection'45, and a corresponding groove 46 is formed in the wall of the opening 34 in the cover of the casing, so that the insertion of said plug in its proper position will be insured.

As clearly indicated in Fig. 7, the springclips- 38 are slightly curved'toward each other, so that theengagement of the ends 20 and 22 ofthe switch members therewith can be readily efiecte'd and a good contact insured.

Although we have shown anddescribed segmental switch members, it will be understood that pivotallymounted switch members of different shape may be employed.

Having thus described our invention, we claim and desire to secure by Letters Pat ent- 1. The combination, in a cut-out switch,

' of a pair of independent and pivotally-mounted switch members movable into and out of engagement with each other, supply-wires connected to said members, and an independent member adapted to positively engage and move said switch members on their pivots both into an open as well as a closed circuit position, said latter member having terminals connected to an electroreceptive device and arranged to be respectively engaged by said pair of switch members.

2. The combination, in a cut-out switch, of a pair of pivotally-mounted switch members having supply-wires connected thereto, with a removable plug carrying terminals connected to an electroreceptive device, said plug being arranged to engage one end of each of said switch members to move their opposite ends respectively into engagement with said terminals.

3. The combination, in a cut-out switch, of a pair of movable switch members, one of said members having a split end to receive the other, pivot-pins on which said members are mounted, and springs for keeping said be capable of engagement with each other,

with a plug removably mounted in the casing and provided with terminals electrically connected to an electroreceptive device, said plug including means for engaging and separating saidswitch members when it is entered in the casing and for positively moving saidmembers into engagement with each other-when it is'removed from the casing.

6. The combination, in a cut-out switch, ofa casing, a pair of movable switch members carried in the casing and capable of engagement wltheachother, a removable plug carrying terminals, said plug being constructed to positively displace the switch members, and contact-piecescarried by the plug so as to be engaged by said switch members to cutan electroreceptive device connected thereto intothe main-line circuit, said plug provided-with means-placed to-positively move said switch members into engagement with each other when it is withdrawn from the casing.

7. The combination of the casing, independent segmental switch members carried therein, a main circuit to which said members are connected, said members being pivotally mounted and movable into and out of engagement with each other, a plug removable from the casing for positively engaging and moving said switch members upon their pivots in opposite directions, the casing having an opening for the plug provided with a straight grooved portion, and a projecting stud placed on said plug to register with the groove whereby said plug is positioned relatively to the switch members.

8. The combination of the pivotallymounted segmental switch members, a plug for displacing the same, and spring-clips carried in the sides of said plug for the reception of the ends of the switch members.

9. The combination of the pivotallymounted segmental switch members, a plug for displacing the same, and spring-clips carried in the sides of said plug for the reception of the ends of the switch members, said plug having a curved and recessed end to engage the switch members.

10. The combination of the pivotallymounted switch members normally in en gagement with each other, a plug having recessed sides and a grooved end to engage and separate said members and turn them on their pivots so that their front ends may enter the sidesof said plug, spring-clips mounted in said sides, and means carried by said plug for engagement with said switch members upon the withdrawal of the plug to return said members to their normal position.

11. The combination of the pivotallymounted segmental switch members normally in engagement with each other, a plug having recessed sides and a grooved end to engage said members and cause them to separate and turn on their pivots so that their front ends may enter the sides of said plug, spring-clips mounted in said sides, and rollers for engagement with said switch members upon the withdrawal of the plug to re turn said members to their normal position.

12. The combination of pivotallymounted segmental switch members, a main-line circuit connected thereto, a removable plug arranged to engage and positively turn said switch members in opposite directions on their pivots, and terminals carried by 'said plug and arranged to be engaged by the switch members to out an electroreceptive device connected to them into the main-line circuit.

13. The combination of a casing, independent switch members supported therein and movable into and out of engagement with each other, said members being pivoted and in frictional engagement with their mounting so as to remain in any position to which they are moved, a main-line circuit connected to said members, a plug removably mounted in the casing and constructed to engage and positively displace said switch members, both when it is entered and when it is removed from said casing, and terminals carried by said plug and arranged to engage the switch members to cut an electroreceptive device connected to them into the main-line circuit.

In testimony whereof we have signed our names to this specification in the presence of two subscribing witnesses.

CLIFTON L. BUNDY. ALBERT H. MANWARING. Witnesses:

MURRAY 0. BOYER, Jos. H. KLEIN. 

